Vulnerability Intelligence Report
Atlassian Confluence Data Center and Server Broken Access Control Vulnerability
CVE-2023-22515
Atlassian has been made aware of an issue reported by a handful of customers where external attackers may have exploited a previously unknown vulnerability in publicly accessible Confluence Data Center and Server instances to create unauthorized Confluence administrator accounts and access Confluence instances. Atlassian Cloud sites are not affected by this vulnerability. If your Confluence site is accessed via an atlassian.net domain, it is hosted by Atlassian and is not vulnerable to this issue.
CISA KEV
Nuclei Template
SSVC: Active Exploitation
Automatable
CVSS Base Score
10.0
CRITICAL
Exploitability:3.9
Impact Score:6.1
EPSS Probability:99.16%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-20 ↗CWE-20 Improper Input Validation
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Atlassian | Confluence Data Center | < 8.0.0 (unaffected), >= 8.0.0 (affected), >= 8.0.1 (affected), >= 8.0.2 (affected), >= 8.0.3 (affected), >= 8.1.3 (affected), >= 8.1.4 (affected), >= 8.2.0 (affected), >= 8.2.1 (affected), >= 8.2.2 (affected), >= 8.2.3 (affected), >= 8.3.0 (affected), >= 8.3.1 (affected), >= 8.3.2 (affected), >= 8.4.0 (affected), >= 8.4.1 (affected), >= 8.4.2 (affected), >= 8.5.0 (affected), >= 8.5.1 (affected), >= 8.3.3 (unaffected), >= 8.4.3 (unaffected), >= 8.5.2 (unaffected) |
| Atlassian | Confluence Server | < 8.0.0 (unaffected), >= 8.0.0 (affected), >= 8.0.1 (affected), >= 8.0.2 (affected), >= 8.0.3 (affected), >= 8.1.3 (affected), >= 8.1.4 (affected), >= 8.2.0 (affected), >= 8.2.1 (affected), >= 8.2.2 (affected), >= 8.2.3 (affected), >= 8.3.0 (affected), >= 8.3.1 (affected), >= 8.3.2 (affected), >= 8.4.0 (affected), >= 8.4.1 (affected), >= 8.4.2 (affected), >= 8.5.0 (affected), >= 8.5.1 (affected), >= 8.3.3 (unaffected), >= 8.4.3 (unaffected), >= 8.5.2 (unaffected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
Nuclei Template
SCANNER AVAILABLE
EPSS Score
99.156%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Atlassian · Vendor · Australia |
| Reserved | 2023-01-01T00:01:22 |
| Published | 2023-10-04T14:00:00 |
| Last Updated | 2026-03-25T14:56:37 |
Community Chatter & Buzz